The pair had previously been romantically linked after being spotted partying together in London - despite Lewis being close to Brown's ex Rihanna.

"We ended up going to a party in New York. We go to this club and Karrueche Tran was there. She approached me and told me I was pretty," Veronica said.

"I was upset at the party because Lewis had left me to the side. Somebody later said something about having a threesome with Karrueche Tran. I said no - I wouldn't do that."

On another trip to Barbados, the Formula One ace joked about Veronica joining him for a tryst with another woman.

"I was so embarrassed - nothing happened," she said. "But I think he was just joking about threesomes. As far as I'm aware he never actually had any."

GETTING CATTY OVER PUSSYCAT DOLL

Veronica said he was at the time still bitter about his recent breakup with former X Factor judge Nicole Scherzinger, 39.

She said he would often call Scherzinger names - but also confided to Veronica: 'I wanted to marry her - just not yet'."

"He told me the reason they split up was because she wanted to get married. He wasn't ready," she added.

"I think she thought he was going to propose. He didn't and she got mad."

She also said music fan Lewis was scathing about her ability when they were in a New York studio: "He said he comes in and writes his own music - but she only had someone hand her a piece of paper and say, 'Sing this'. He said, 'She used to come in here and criticise me'. He called her all the names under the sun."

Romance between Veronica and Lewis gradually fizzled out after three months in 2015 - but she continued to see him in Barbados each August.

Swimwear designer Veronica noticed how Lewis' behaviour changed during their later meetings - especially when he had a drink.

Last August she saw him in Barbados for the final time. "I was at a party with him and I came to ask him if he was OK - but he just swore at me," she said.

"He told me to 'get the f*** out of there' and that it was 'none of my f***ing business'.

"I don't understand why I was invited on that trip to get treated like that. His friend said when Lewis drinks, he loses his head. He doesn't act the same. After just one drink he changes and becomes so rude."

Veronica says Lewis also made cruel jibes about her weight. "He would call me fat in front of all his friends," she said. "If I was the first one to get food he would say, 'Look at you, you are so fat!' He would tell me I would eat too much - right before I went to serve myself food. Who does that to a woman?

"People started laughing at me and I felt bad. One time he was with some girls in the room and as soon as I came in he started making fun of me. He said, 'Wow, you are so bright you look like a damn Oompa Loompa'. Throughout the whole trip he was so ugly to me."

'UGLY SIDE' OF F1 STAR

Lewis - who in 2017 won the world title for a fourth time - apologised last month for making "inappropriate comments" about his young nephew wearing a dress.

The F1 ace had posted a video in which he said: "Boys don't wear princess dresses."

Veronica said the footage did not surprise her, and she added: "Seeing that video of him with his nephew brought it back to me how mean he could be. He can charm you, but he also has an ugly side."

Veronica says she has now changed her number after realising Lewis only wanted her for sex. "I really liked him but after a while I felt he just wanted to have sex and then get rid of me," she said.

"I didn't know where that came from. I was so confused. He was so mean to me. He wasn't the sweet guy I met first of all in Barbados. I felt like he was using me just for sex. It felt really bad."